The electrochemical degradation of ciprofloxacin using a SnO2-Sb/Ti anode: Influencing factors, reaction pathways and energy demand

Wang, Ying; Shen, Chanchan; Zhang, Manman; Zhang, Bo-Tao; Yu, Yang

doi:10.1016/j.cej.2016.03.093

Cited by 249 publications

(48 citation statements)

References 48 publications

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“…66,67 For instance, a SnO 2 -Sb/Ti electrode fabricated with the sol-gel method was employed for the degradation of ciprofloxacin. 68 The coating particles of the anode were uniform in size, with diameters ranging from 20-100 nm. The nanostructure of the SnO -Sb/Ti anode exhibited a large surface area, and thereby provided plentiful active sites for the electrocatalytic process.…”

Section: Sno 2 -Based Catalystsmentioning

confidence: 99%

“…The deactivation of anodes is a common issue in the electrochemical oxidation process, especially the PbO 2 and SnO 2 based catalysts. 33,37,39,68,70,78,90,144 There are many factors responsible for the anodic deactivation, such as mechanical damages, detachment, consumption/dissolution, and passivation, as well as operating conditions (e.g., temperature, applied current), etc. 70,145,146 To alleviate the deactivation and prolong the lifetime of catalysts, the efficient strategies (e.g., doping, introducing interlayer) which focus on optimizing the catalyst configuration have exhibited great potentials.…”

Section: Carbon-based Catalystsmentioning

confidence: 99%

See 1 more Smart Citation

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Chen

Liu

Wei

et al. 2019

Environ. Sci.: Nano

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Section: Sno 2 -Based Catalystsmentioning

confidence: 99%

Section: Carbon-based Catalystsmentioning

confidence: 99%

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Chen

Liu

Wei

et al. 2019

Environ. Sci.: Nano

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“…The diffraction peaks (2 θ ) of SnO 2 /Sb‐Ti at 26.542° (110), 33.808° (101), 37.887° (200), 51.675° (211), and 71.118° (202) were the characteristic patterns of SnO 2 . From the XRD spectra, the oxides of antimony were not found due to the low doping level of Sb and the incorporation of Sb into SnO 2 . In both PbO 2 ‐Ti and SnO 2 /Sb‐Ti, the characteristic peaks of Ti were not detected, because the Ti was completely coated by the catalyst layer.…”

Section: Resultsmentioning

confidence: 99%

Efficient rhodamine B degradation using electro‐fenton process with PbO₂‐coated titanium as the anode

Tian

Yang

et al. 2018

Env Prog and Sustain Energy

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To replace the high cost Pt anode, Ti based PbO2 electrode (PbO2‐Ti) and Ti based SnO2 doped with Sb electrode (SnO2/Sb‐Ti) were fabricated and compared for treating 0.1 mM Rhodamine B (RhB) in Electro‐Fenton (EF) process. Scanning electron microscopy, energy dispersive X‐ray, X‐ray diffraction spectrometry were carried out to study the surface morphology, element composition, and substance composition of the anodes (PbO2‐Ti and SnO2/Sb‐Ti). Linear Sweep Voltammetry, cyclic voltammetry, Tafel, and electrochemical impedance spectroscopy were conducted to examine the electrochemical properties of the anodes (Pt, PbO2‐Ti, SnO2/Sb‐Ti, and Ti). These assessments showed that PbO2‐Ti had the best performance. Then, the influence of varied parameters (pH, types of anodes, current density, and electrolyte) were explored. Almost complete decolorization (99.01%) was reached at pH 3, current density 50 A/m2, 0.05 M Na2SO4 using PbO2‐Ti as the anode after 20 min electrolysis. Under these conditions, 90.48% of total organic carbon was removed after 180 min. Finally, the durability of PbO2‐Ti was evaluated via accelerated service life test and exhibited long service lifetime (∼4000 h). © 2018 American Institute of Chemical Engineers Environ Prog, 38: 189–197, 2019

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“…Based on previous studies focusing on advanced oxidation, ciprofloxacin is most likely to degrade at the quinolone moiety and piperazine ring, as shown in Figure 6 [72]. The product at [M+H] + = 362 should be attributed to the oxidation of piperazine.…”

Section: Mechanism Of Ciprofloxacin Degradation By Fe2o3/rgo-atp Catamentioning

confidence: 91%

“…The intermediate product [M+H] + = 348 is generated by the hydroxyl radical attacking the C4 atom [76]. Wang et al also concluded that the hydroxyl group is most likely to attack the quinolone ring, and [M+H] + = 348 is considered to be the product of the hydroxylation process [72].…”

Section: Mechanism Of Ciprofloxacin Degradation By Fe 2 O 3 /Rgo-atp mentioning

confidence: 99%

A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway

et al. 2020

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Ciprofloxacin, a third-generation fluoroquinolones (FQs) antibiotic, is observed to increasingly pollute the environment. In this study, a three-dimensional reduced graphene oxide-attapulgite-based catalyst Fe2O3/RGO-ATP was prepared and used to analyze the degradation of ciprofloxacin in a heterogeneous Fenton reaction. The heterogeneous catalyst Fe2O3/RGO-ATP was prepared by a one-step hydrothermal method, and the samples were characterized using BET(Brunauer-Emmett-Teller) surface area, Raman spectroscopy, X-ray diffraction (XRD), Fourier infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The effect of reaction time, temperature, pH, initial concentration, H2O2 dosage and reuse time on the degradation of ciprofloxacin by the catalyst Fe2O3/RGO-ATP was investigated. The optimum conditions of degradation of ciprofloxacin are observed to be 60 °C, pH 5, H2O2 concentration of 2.9724 mmol/L, and initial ciprofloxacin concentration of 50 mg/L. The catalyst could be reused several times with a decline in catalytic capacity. Fourier-transform ion cyclotron resonance mass spectrometer (FT) was also employed to study the degradation products of ciprofloxacin in the aqueous solution. The results show that the heterogeneous catalyst Fe2O3/RGO-ATP possessed an excellent ability for the catalytic degradation of ciprofloxacin. Direct hydroxyl oxidation is noted to be the main pathway of degradation of ciprofloxacin, and no defluorination reaction is observed during the degradation process.

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The electrochemical degradation of ciprofloxacin using a SnO2-Sb/Ti anode: Influencing factors, reaction pathways and energy demand

Cited by 249 publications

References 48 publications

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Efficient rhodamine B degradation using electro‐fenton process with PbO₂‐coated titanium as the anode

A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway

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The electrochemical degradation of ciprofloxacin using a SnO2-Sb/Ti anode: Influencing factors, reaction pathways and energy demand

Cited by 249 publications

References 48 publications

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Recent advances in electrocatalysts for halogenated organic pollutant degradation

Efficient rhodamine B degradation using electro‐fenton process with PbO2‐coated titanium as the anode

A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway

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Efficient rhodamine B degradation using electro‐fenton process with PbO₂‐coated titanium as the anode